AXOMIA.— Plate I. 



produced around the upper part of the orifice. The shell 

 is moreover distinguished by a square, subauriculated foru), 

 verj' conspicuously radiately striated. 



Species 4. (Mus. Cuming.) 



Anomia sol. Anom. testa valvd superiore convexd, tenui, 

 hyalind, faxuoso-radiatd, radiis inlerrupte rugom ; 

 umbone subprominente, actito ; pellucido-albd, aun-o- 

 rufescente-thictd. 



The sun Anomia. Upper valve of the shell convex, 

 thin, hyaline, flexuously rayed, rays interruptedly 

 rugose ; umbo rather prominent, sharp ; transparent- 

 white, tinged with golden-red. 



Hah. Kurachee, mouth of the Indus. 



Mr. Cuming possesses only a single upper valve of this 



species. It is extremely thin and hyaline, flexuously rayed, 



and of a bright transparent golden-red colour. 



Species 5. (Mus. Cuming.) 

 Anomia c.^ilata. Anom. testa suborbiculari, irregula- 

 riter concentrice laminatd, radiatim liratd, liris line- 

 arilms, coitfertis ; valvd superiore hyalino-albd, aureo- 



rufescente tinctd, inferiore virescente-albd, concentrice 

 itriatd. 



The carved Anomia. Shell somewhat orbicular, irregu- 

 larly concentrically laminated, radiating ridged, ridges 

 linear, close-set; upper valve hyaline-white, tinged 

 with golden-red, lower valve greenish-white, concen- 

 trically striated. 



Hab. ? 



The upper valve of this species has a close-set, radiating, 



ridge-like sculpture of its own, quite distinct in character 



from that of the preceding species. In colour it is of a 



bright golden hue, greenish-white beneath. 



Species 6. (Mus. Cuming.) 



Anomia placentella. Anom. testd subquadrato-ovatd, 

 tenuissimd, conveximculd, lavi, submalleald, albd. 



The Placenta-like Anomia. Shell somewhat squarely 

 ovate, very thin, rather convex, smooth, slightly 

 malleated, white. 



Hab. ? 



An extremely thin convex shell, of rather a Placenta- 



like, form having the upper surface faintly malleated. 



